NGC 2261 is a variable reflection nebula located in the constellation Monoceros, at about 2.500 light-years away. The nebula is illuminated by the star R Monocerotis and it manifests ch...
RCW 38 is a young, massive star-forming region located about 5,500 light-years away in the constellation Vela. It is a dense, luminous nebula filled with hot, newly formed stars, intens...